兴义秋海棠 xing yi qiu hai tang

Herbs, deciduous. Tubers globose, 6-10 mm in diam. Leaves basal; stipules caducous, membranous; petiole 4-4.5 cm, villous; blade broadly ovate or orbicular, asymmetric, 4.5-6 cm, papery, sparsely villous, venation palmate, 7- or 8-veined, base oblique, slightly cordate, margin irregularly serrate or biserrate, apex obtuse. Inflorescences 4-8 cm tall, pilose; bracts caducous, lanceolate, 2-3 mm, membranous. Staminate flowers: pedicel 8-10 mm; tepals (3 or)4, purplish white, outer 2 broadly ovate to obovate, 8-9 × ca. 5 mm, inner 2 obovate-oblong, ca. 7 × 4 mm; stamens numerous; filaments ca. 0.8 mm, fused at base; anthers oblong, ca. 0.5 mm. Pistillate flowers: tepals 2, suborbicular, ca. 5 × 7 mm; styles 3, entirely fused. Fl. Aug.

● On rocks in valleys; ca. 1100 m. Guizhou (Xingyi).

This species is similar to Begonia labordei but differs by its 2-tepaled pistillate flowers.